Railway-car ventilator.



E. A. BARBER.

RAILWAY GAB. VENTILATOB. APPLICATION IiLED NOV. so, 1908.

I 7, 171 Patented Jan. 18, 1910.

witvwoom EDWARD A. BARBER, or onK, PENNSYLVANIA.

RAILWAY-CAR VENTILATOR.

Specification a Letters Patent. P t t Jan, 1 1910,

Application filed November 30, 1908. Serial No. 485,188.

To all whom "it may concern:

Be it known that I, EDWARD A. BARBER, a citizen of the United States, residing at York, in the county of York and State of Pennsylvania, have invented certain new and useful Improvements in Railway-Car Ventilators, of which the following is a specification.

My invention relates to means forreplacing atmosphere in a railway car, or.other slmllar vehicle, by inducing a flow of air thereto by the travel of the car, and the object of my invention is to produce a simple and inexpensive, but efiective, means to this end.

In carrying out my invention, I utilize the outward suction in the front vestibule of a vestibule car and the inward suction in the rear vestibule thereof, which are created by the displacement of air incident to the running of the car. When a car is moving, the forward end thereof causes an outward displacement of air which is shown by ex periment to exert a distinct and measurable suction in the front vestibule; and at the same time the movement of the car body with its considerable displacement of air which tends to create a vacuum behindand at the rear end of the car, causes an inward suction on the rear platform which has been found in practice to exist to ameasurable ex tent. These air pressures resulting from the running of the car whenutilized, according to my invention, are quite effective to change the air in a car without creating objectionable clraft therein. In order to more readily create the outward suction in the front vestibule, the end bulk head is designed with a substantially even transverse surface there at, giving the front end of the car a squared form. In accomplishing this result, I employ two openings in the end walls of the car, and preferably in the upper portions thereof, whereby communication is established between the interior of the car and the vestibules, through which foul air will be drawn forward and discharged from the front vestibule, while fresh air may enter from the rear vestibule, as the car is under way suitable closures being provided for these openings so that their capacity may be changed or they may be closed off at will.

My invention will be fully understood upon reference to the accompanying drawmg, in which one embodiment 18 shown by Way of illustration. I

In said drawing, Figure 1 is a horizontal sectional view of a vestibule car, and Fig. 2

is a vertical transverse section in a plane just Within the inner end wall or bulkhead.

A represents the main body and B the vesti'bules of a known type of street railway car, in which compartments C are provided for the ,motorman. i

D are the steps.

In carrying out my invention, I provide openings 1 near the middle of the upper portions of the end walls of the main carbody, thereby producing openings between the vestibules B and the interior of the car. These opcningsare preferably provided witlrsliding closures 2, by which the openings may be partially or wholly cut off, or by which the rear opening may be partially or wholly closed while the forward one is kept open, as may be found expedient; When the car progresses in either direction, the front "bulkhead, or shield, which -incloses the vestibule creates a'partial vacuum by the displacement of air, and this in turn induces a suction within the forward vestibule, which, when the ventilators are opened, is supplied with air fromthe interior of the car. In Fig. 1, the direction of travel is suggested by theheavy arrow, and the course of the air current set up throughthe car is indicated by the light arrows. The effect is favored by a vestibule .car having partitions 3 for dividing off the motormans compartments C; also by having the vestibule bulkheads constructed in transverse planes as shown.

I have found in practice that a car may be thoroughly and promptly ventilated by the system herein described. As the ventilator openings communicate with the vestibules, they are alwaysprotected from the weather and the ventilation can, therefore, be' maintained at all times. The expensive construction of vaulted deck roofs and of ventilators formed therein, as well as the inconvenience resulting from opening said last-named ventilators in .bad weather, are entirely done away with. I

Having thus described my invention,-what I claim as new therein and desire to secure by LettersPatent is 1. In a car constructed with an end Wall and with a laterally op'en vestibule outside 2; In a car constructed with an end wall and with a vestibule exterior thereto having its front, top and one side closed and its other side provided with an opening; a ventilator opening located in the upper portion of the end wall and establishing communication between the vestibule and the interior of the car.

3. In a car having an end wall and a forwardly closed and laterally open vestibule exterior to the end wall, a ventilator opening formed in the upper intermediate portion of the end wall of the car, establishing communication between the vestibule and the interior of the car; said car also having an air inlet at a point remote from the ventilator.

4. A car constructed with an end wall and with a vestibule exterior to said wall constructed with a closed end and side and also with an open side; said end wall being constructed with a ventilator-opening establishing communication between the vestibule and the interior of the car.

5. A car constructed with end walls and with vestibules exterior to said end walls constructed each with a closed end and a side opening and each of the end walls of the car being constructed with a ventilatoropening establishing communication between the vestibule and the interior of the car.

6. In a car constructed with an end wall and with a platform outside ofv said. end wall having its end and one of its sides closed and its other side open, also having a partition dividing said platform into closed and laterally open portions; a ventilatoropening constructed in the end wall of the car in position to establish communication between the laterally open portion of the vestibule and the interior of the car body.

7. A car constructed with an end wall having a ventilator opening therein, a laterally open platform outside of said end all, and a bulkhead closing the front end of said platform; said bulkhead being constructed in a plane substantially transverse to the length of the car whereby suction is produced above the platform that draws air through the ventilator opening.

8. In a railway car constructed with a platform at one end, an end bulkhead partially inclosing said platform but leaving a lateral opening thereto, said bulkhead lying within one plane and providing a squared end for said car and an inner end wall parallel with said end bulkhead, dividing the main body of the car from said platform, said inner end wall being provided with a ventilator opening and said end bulkhead being adapted to create a partial vacuum forward of the end wall of the ear and cause a draft of air through the car in the direction of its movement.

9. In a railway car constructed with end platforms, end bulkheads co-extensive in width with said ca 1 and partially inclosing said platforms but leaving a lateral opening thereto, end walls co-extensive with the end bulkheads, dividing the main body of the car from the platforms, and ')roviding vestibules, and said end walls being provided with ventilator openings, whereby the forward of the end bulkheads creates a partial vacuum within the forward vestibule and causes a draft of air through said ear in the direction of its movement.

The foregoing specification signed at Yorln Penna, this Q-lth day of November, 1908.

EDIVARD A. BARBER.

In presence of- W. P. Mosrnnmin, C. B. LIPPI-IART. 

